CN110639931A - Process for coupling kitchen waste and biomass to coproduce oil, electricity, steam and carbon - Google Patents
Process for coupling kitchen waste and biomass to coproduce oil, electricity, steam and carbon Download PDFInfo
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- 239000002028 Biomass Substances 0.000 title claims abstract description 59
- 239000010806 kitchen waste Substances 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000008569 process Effects 0.000 title claims abstract description 24
- 230000005611 electricity Effects 0.000 title claims abstract description 15
- 230000008878 coupling Effects 0.000 title claims abstract description 11
- 238000010168 coupling process Methods 0.000 title claims abstract description 11
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 8
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000002245 particle Substances 0.000 claims abstract description 32
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- 239000000446 fuel Substances 0.000 claims abstract description 19
- 239000005416 organic matter Substances 0.000 claims abstract description 19
- 238000000926 separation method Methods 0.000 claims abstract description 18
- 239000002699 waste material Substances 0.000 claims abstract description 18
- 238000001035 drying Methods 0.000 claims abstract description 14
- 238000002309 gasification Methods 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000000197 pyrolysis Methods 0.000 claims abstract description 7
- 238000011084 recovery Methods 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 14
- 239000003610 charcoal Substances 0.000 claims description 12
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 9
- 239000003546 flue gas Substances 0.000 claims description 9
- 238000002485 combustion reaction Methods 0.000 claims description 8
- 238000010248 power generation Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 6
- 239000010902 straw Substances 0.000 claims description 4
- 239000002918 waste heat Substances 0.000 claims description 4
- 235000001674 Agaricus brunnescens Nutrition 0.000 claims description 3
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- 210000003608 fece Anatomy 0.000 claims description 3
- 238000005469 granulation Methods 0.000 claims description 3
- 230000003179 granulation Effects 0.000 claims description 3
- 239000010815 organic waste Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 238000013138 pruning Methods 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 23
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 238000004064 recycling Methods 0.000 abstract description 5
- 239000000843 powder Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 14
- 150000003839 salts Chemical class 0.000 description 11
- 239000003337 fertilizer Substances 0.000 description 8
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- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
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- 208000005156 Dehydration Diseases 0.000 description 2
- 239000003225 biodiesel Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/80—Destroying solid waste or transforming solid waste into something useful or harmless involving an extraction step
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/02—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/04—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/08—Non-mechanical pretreatment of the charge, e.g. desulfurization
- C10B57/10—Drying
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a process for coupling kitchen waste and biomass to coproduce oil, electricity, steam and carbon, which comprises the following steps: 1) initial scoring: separating swill and solid content from kitchen waste; 2) oil-water separation: separating out the biomass oil in the swill and then feeding the biomass oil into a recovery oil tank; 3) crushing: crushing the solid content; 4) heating; 5) and (3) secondary separation: separating the swill from the solid content again and returning the swill to the oil-water separation; 6) mixing: mixing solid kitchen waste particles with biomass powder; 7) granulating; 8) drying; 9) pyrolysis and gasification: pyrolyzing and gasifying the organic matter derived granular fuel at the temperature of 600-800 ℃ and the air equivalent ratio of 0.1-0.28 to obtain biomass gas and biochar; 10) generating electricity; the invention has the advantage of less emissions, realizes the internal circulation of electric power and heat energy, can greatly improve the comprehensive environmental protection benefit and the economic benefit, and realizes the recycling and harmless utilization of the kitchen waste and the waste.
Description
Technical Field
The invention relates to a process for coupling kitchen waste and biomass to coproduce oil, electricity, steam and carbon, and belongs to the field of centralized treatment of kitchen waste.
Background
The kitchen waste refers to wet waste classified by units and families engaged in activities such as catering service, unit catering, food production and processing and the like, food residues, food processing waste, waste edible oil and fat and the like generated in the production and operation processes of individuals. The water-soluble organic fertilizer has the characteristics of high moisture, high grease and high salinity, the water content of the water-soluble organic fertilizer can reach about 90 percent, and the water-soluble organic fertilizer has the dual properties of wastes and resources; with the increase of urban population and the improvement of the living standard of people, the yield of the kitchen waste is increased year by year, so that the problem of environmental pollution is increasingly serious; illegal kitchen waste grease enters a dining table or a food chain, and the health of people is seriously influenced. The kitchen waste is mainly treated in the following way: 1) the feed comprises the following components: the potential safety hazard of great homology exists in the safety of animal food, the spreading of infectious diseases which are common to people and livestock is easily caused, and the domestic garbage is mixed to be treated together or directly flows into a sewer, so that the resources are wasted, and the blockage of an urban sewage pipe network is easily caused; 2) burying: the leachate of the kitchen waste pollutes underground water and soil, COD, BOD and odor generated by stacking the waste seriously influence the air quality, secondary pollution to the surrounding large-scale atmosphere and water and soil is formed, and the recycling treatment of the waste is not realized; 3) and (3) incineration: the incineration treatment capacity is large, the capacity reduction is good, and the energy of the garbage can be realized by using the heat generated in the incineration process for power generation. However, because the kitchen waste has large water content and low heat value, the kitchen waste is difficult to burn, in addition, the burning treatment investment is high, and simultaneously, a large amount of harmful gas, sintering slag and other solid residues are generated by burning, so that the pollution is converted into more serious and extensive pollution from one kind, and the method is not a mainstream technology for treating the kitchen waste; 4) high-temperature aerobic composting: the method has the advantages that dehydration treatment is needed before composting, waste gas pollution generated in an aerobic composting site is difficult to control, the influence on the surrounding environment is large, high oil content and high salt content in the kitchen waste are not beneficial to the growth of microorganisms, the effect of a high-temperature aerobic composting treatment process is also restricted, the fertility of a composting finished product is not high, the market acceptance is low, and researches show that the high salt content of the kitchen waste composting finished product can inhibit seed germination, and soil salinization and hardening are easily caused; 5) anaerobic fermentation: decomposing organic matters by using microorganisms in an anaerobic environment, and finally generating methane; however, the anaerobic fermentation treatment technology has large engineering investment, long gas production period, large amount of produced biogas slurry and difficult treatment, and along with salt accumulation, high salt inhibits the fermentation effect, the gas production rate is low, the treatment capability and the economy are poor, and the feasibility is influenced; all the above results in that the kitchen waste is difficult to treat, the cost is high, the investment is more than the income, and the resource and harmless utilization can not be realized.
Disclosure of Invention
The invention aims to provide a process for coupling kitchen waste and biomass to produce oil, electricity, steam and carbon in a combined manner aiming at the defects of the existing kitchen waste treatment process, which has the advantages of less emissions and no secondary pollution, realizes the internal circulation of electric power and heat energy, can greatly improve the comprehensive environmental protection benefit and the economic benefit, and realizes the harmless and resource utilization of the kitchen waste and the biomass waste.
In order to achieve the purpose, the process for coupling kitchen waste and biomass to jointly produce oil, electricity, steam and charcoal comprises the following steps of: 1) initial scoring: separating swill and solid content from kitchen waste; 2) Oil-water separation: separating out the biomass oil in the swill and then feeding the biomass oil into a recovery oil tank, and feeding the rest liquid into a water treatment system; 3) Crushing: crushing the sorted solid content, wherein the granularity is less than 30 mm; it is characterized by also comprising: 4) heating: heating the crushed solids; 5) and (3) secondary separation: separating the swill from the solid content again, and returning the swill to perform oil-water separation to obtain the residual solid kitchen waste particles; 6) mixing: mixing solid kitchen waste particles with biomass particles; 7) and (3) granulation: sending the mixed particles into a granulator to obtain organic matter derived granular fuel; 8) and (3) drying: drying the organic matter derived granular fuel until the water content is not more than 20%; 9) pyrolysis and gasification: the organic matter derived granular fuel is sent into a gasification furnace, and is pyrolyzed and gasified under the micro-oxygen condition that the temperature is 600-800 ℃ and the air equivalent ratio is 0.1-0.28, so as to obtain biomass gas and biochar; 10) generating electricity: the biomass gas is sent into an internal combustion generator or a turbo generator set for combustion and power generation.
The biomass particles comprise biomass particles such as agricultural planting straws, urban garden pruning branches, forest waste, urban domestic organic waste, cultured cow dung, mushroom planting waste fungus bag residues and the like, the water content of the biomass particles is controlled to be below 30%, and the mass ratio of the biomass particles to the solid kitchen waste particles is 50-150%;
the invention separates out the biomass oil through oil-water separation and secondary separation, and can be used for manufacturing biodiesel; the rest solid kitchen waste particles and the biomass particles are mixed and coupled, the heat value can reach more than 3000-3200 kilocalories, simultaneously, the salt content is diluted and reduced, the mutual supplement of the advantages of the kitchen waste and the biomass is realized, the kitchen waste and the biomass are granulated, dried and pyrolyzed and gasified, the salt content is easy to dissolve in water and low in concentration, the salt content is converted into a gas state to be discharged out of a gasification furnace along with water vapor during pyrolysis and gasification, the rest biomass charcoal of the gasification furnace basically does not contain sodium chloride, the biomass charcoal can be directly sold to a compound fertilizer plant to be used as a charcoal-based fertilizer raw material, charcoal-based fertilizer can be further produced, and the problem of secondary pollution and hardening caused by salt in the kitchen. The carbon-based fertilizer is a green organic fertilizer and cannot cause the problem of soil hardening; the biomass gas is used for combustion and power generation, and then the power is output to the Internet, so that value-added benefits are realized; the invention avoids the direct pollution of the kitchen waste to water, soil and atmospheric environment, has the advantages of less emission and no secondary pollution, simultaneously efficiently utilizes the waste biomass, generates electric power which can meet the requirements of equipment in each process, simultaneously provides green energy by directly surfing the internet with redundant electric quantity, can greatly improve the comprehensive environmental protection benefit and the economic benefit, and realizes the recycling and harmless utilization of the kitchen waste and organic waste;
preferably, 30 to 80 percent of the organic matter derived granular fuel obtained in the drying step is returned to the mixing step; the water content of the materials during mixing can be reduced, the water content of the organic matter derived granular fuel is convenient to control, and the dehydration efficiency is improved;
as a preferred aspect of the present invention, a part of the flue gas generated in the power generation process is sent to a waste heat boiler to generate steam, and the steam is used for the heating process; and returning the other part of the flue gas to be used in a drying process to dry the organic matter derived granular fuel: the waste heat utilization of the flue gas can be realized, the heat energy requirement of the whole process is met, the internal circulation of the heat energy is realized, and the economic benefit is further improved;
in conclusion, the invention has the advantages of less emissions, realizes the internal circulation of electric power and heat energy, can greatly improve the comprehensive environmental protection benefit and the economic benefit, and realizes the recycling and harmless utilization of the kitchen waste and the biomass waste.
Drawings
FIG. 1 is a process flow diagram of an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples.
As shown in fig. 1, the process for coproducing oil, electricity, steam and charcoal by coupling kitchen waste and biomass according to the embodiment includes the following steps: 1) initial scoring: separating swill and solid content from the kitchen waste by a vibration solid-liquid separator; 2) Oil-water separation: separating biomass oil in swill through an oil-water separation device, allowing the biomass oil to enter a recovery oil tank, allowing the rest liquid to enter a water treatment system, and discharging the processed liquid after reaching the standard; 3) Crushing: crushing the sorted solid content by a double-shaft crusher, wherein the granularity is less than 30 mm; 4) Heating: heating the crushed solids entering the heating mixer by steam; 5) and (3) secondary separation: separating the swill from the heated solid content in the solid-liquid separator again, and returning the swill to the oil-water separation process for oil-water separation to obtain the residual solid kitchen waste particles; 6) mixing: mixing solid kitchen waste particles and biomass particles in a high-speed mixer, wherein the water content of the solid kitchen waste particles is controlled to be below 30%, and the mass ratio of the biomass particles to the solid kitchen waste particles is 50-150%; 7) and (3) granulation: feeding the mixed particles into a granulator to obtain organic matter derived pellet fuel (RDF); 8) and (3) drying: drying the organic matter derived granular fuel by a flue gas drying dehydrator until the water content is not more than 20%, and returning 30-80% of the dried organic matter derived granular fuel to the mixing process; 9) pyrolysis and gasification: the organic matter derived granular fuel is sent into a gasification furnace, and is pyrolyzed and gasified under the micro-oxygen condition that the temperature is 600-800 ℃ and the air equivalent ratio is 0.1-0.28, so as to obtain biomass gas and biochar; 10) generating electricity: the biomass gas is sent into an internal combustion generator or a steam turbine generator unit for combustion and power generation; a part of the generated flue gas is sent into a waste heat boiler to generate steam, and the steam is used for a heating procedure; and returning the other part of the flue gas to be used in a drying process to dry the organic matter derived granular fuel.
The biomass particles comprise biomass particles such as agricultural planting straws, urban garden pruning branches, forest waste, urban domestic organic garbage, cultured cow dung, mushroom planting waste fungus bag residues and the like; the waste utilization can be realized, and the straw resource income is also brought to farmers;
the invention separates out the biomass oil through oil-water separation and secondary separation, and can be used for manufacturing biodiesel; the rest solid kitchen waste particles and the biomass particles are mixed and coupled, the heat value can be improved to be more than 3000-3200 kilocalories, simultaneously, the salt content is diluted and reduced, the mutual supplement of the advantages of the kitchen waste and the biomass is realized, the kitchen waste and the biomass are granulated, dried and pyrolyzed and gasified, the salt content is easy to dissolve in water and low in concentration, the salt content is converted into a gas state to be brought out of a gasification furnace along with water vapor during the pyrolysis and gasification, the rest biomass charcoal of the gasification furnace basically does not contain sodium chloride, can be directly sold to a compound fertilizer plant to be used as a charcoal-based fertilizer raw material, can also be used for further producing charcoal-based fertilizer, and effectively prevents the problem of secondary pollution and hardening caused by. The carbon-based fertilizer is a green organic fertilizer and cannot cause the problem of soil hardening; the temperature and the air equivalence ratio are strictly controlled to be 0.1-0.28 during pyrolysis and gasification, so that the gas production rate is improved; the biomass gas is used for combustion and power generation, and then the power is output to the Internet, so that value-added benefits are realized; the invention avoids the direct pollution of the kitchen waste to water, soil and atmospheric environment, has the advantages of less emission and no secondary pollution, efficiently utilizes the waste biomass, generates electric power which can meet the requirements of equipment of each process, generates flue gas which can meet the heat energy requirement of the whole process, realizes the internal circulation of heat energy, does not need external input of electric power and heat energy, further improves the economic benefit, can greatly improve the comprehensive benefit and the economic benefit of environmental protection, and really realizes the recycling and harmless utilization of the kitchen waste and the biomass waste; the organic matter derived granular fuel part obtained in the drying procedure returns to the mixing procedure, so that the water content of the materials during mixing can be reduced, the water content of the organic matter derived granular fuel is convenient to control, and the production efficiency is improved;
the present invention is not limited to the above-described embodiments, and the basic principles, main features and advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. A process for jointly producing oil, electricity, steam and carbon by coupling kitchen waste and biomass comprises the following steps: 1) initial scoring: separating swill and solid content from kitchen waste; 2) Oil-water separation: separating out the biomass oil in the swill and then feeding the biomass oil into a recovery oil tank, and feeding the rest liquid into a water treatment system; 3) Crushing: crushing the sorted solid content, wherein the granularity is less than 30 mm; it is characterized by also comprising: 4) heating: heating the crushed solids; 5) and (3) secondary separation: separating the swill from the solid content again, and returning the swill to perform oil-water separation to obtain the residual solid kitchen waste particles; 6) mixing: mixing solid kitchen waste particles with biomass particles; 7) and (3) granulation: sending the mixed particles into a granulator to obtain organic matter derived granular fuel; 8) and (3) drying: drying the organic matter derived granular fuel until the water content is not more than 20%; 9) pyrolysis and gasification: the organic matter derived granular fuel is sent into a gasification furnace, and is pyrolyzed and gasified under the micro-oxygen condition that the temperature is 600-800 ℃ and the air equivalent ratio is 0.1-0.28, so as to obtain biomass gas and biochar; 10) generating electricity: the biomass gas is sent into an internal combustion generator or a turbo generator set for combustion and power generation.
2. The process for coproducing oil, electricity, steam and charcoal by coupling kitchen waste and biomass according to claim 1, which is characterized in that: the biomass particles comprise biomass particles such as agricultural planting straws, urban garden pruning branches, forest waste, urban domestic organic waste, cultured cow dung, mushroom planting waste fungus bag residues and the like, the water content of the biomass particles is controlled to be below 30%, and the mass ratio of the biomass particles to the solid kitchen waste particles is controlled to be 50-150%.
3. The process for coproducing oil, electricity, steam and charcoal by coupling kitchen waste and biomass according to claim 1 or 2, which is characterized in that: 30-80% of the organic matter derived granular fuel obtained in the drying process is returned to the mixing process.
4. The process for coproducing oil, electricity, steam and charcoal by coupling kitchen waste and biomass according to claim 3, wherein the process comprises the following steps: a part of the flue gas generated in the power generation procedure is sent to a waste heat boiler to generate steam, and the steam is used for the heating procedure; and returning the other part of the flue gas to be used in a drying process to dry the organic matter derived granular fuel.
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| CN201910896586.7A CN110639931A (en) | 2019-09-23 | 2019-09-23 | Process for coupling kitchen waste and biomass to coproduce oil, electricity, steam and carbon |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111299309A (en) * | 2020-04-14 | 2020-06-19 | 卞为国 | Comprehensive treatment device for household garbage |
| CN112058854A (en) * | 2020-08-04 | 2020-12-11 | 北京环境工程技术有限公司 | Kitchen waste dehydration composting process and system |
| CN112742852A (en) * | 2021-02-07 | 2021-05-04 | 安徽创夫子科技有限公司 | Ecological treatment device and method for food waste |
| CN114405467A (en) * | 2022-01-24 | 2022-04-29 | 博仕燊环保科技(广州)有限公司 | Biochar prepared from kitchen waste and garden waste and preparation method thereof |
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